<template>
  <view class="my-settle-container">
    <!-- 全选 -->
    <label class="radio" @click="changeAllState">
      <radio  color="#c00000" :checked="isFullcheck" /><text> 全选</text>
    </label>
    <!-- 合计 -->
    <view class="amount-box">
      合计：<text class="amount">￥{{checkedGoodsAmount}}</text>
    </view>
    <!-- 结算按钮 -->
    <view class="btn-settle"  @click="settlement">
      结算({{checkedCount}})
    </view>
  </view>
</template>
<script>
  import {mapGetters,mapMutations,mapState} from 'vuex'
  export default {
    data(){
      return{
        // 倒计时秒数
       seconds:3,
       // 定时器的id
       timer:null
      }
    },
    computed:{
      ...mapGetters('m_cart',['checkedCount','total','checkedGoodsAmount']),
      ...mapGetters('m_user',['addstr']),
      ...mapState('m_user',['token']),
      ...mapState('m_cart',['cart']),
      isFullcheck(){
        return this.total===this.checkedCount
      }
    },
    methods:{
      ...mapMutations('m_cart',['updateAllGoodsState']),
      ...mapMutations('m_user',['updateRedirectInfo']),
      changeAllState(){
        // console.log(!this.isFullcheck)
        this.updateAllGoodsState(!this.isFullcheck)
      },
      // 用户点击了结算按钮
      settlement(){
        if(!this.checkedCount) return uni.$showMsg('请选择要结算的商品！')
        if(!this.addstr) return uni.$showMsg('请选择收货地址！')
        // if(!this.token) return uni.$showMsg('请先登录！')
        if(!this.token) return this.delayNavigate()
        
        this.payOrder()
      },
      async payOrder(){
        // 1.创建订单 
        // 1.1 组织订单的信息对象
        const orderInfo = {
          // order_price:this.checkedGoodsAmount,
          order_price:0.01,
          consignee_addr:this.addstr,
          goods:this.cart.filter(x=>x.goods_state).map(x=>({
            goods_id:x.goods_id,
            goods_number:x.goods_count,
            goods_price:x.goods_price
          }))
        }
        // 1.2 发起请求创建订单
        const {data:res} = await uni.$http.post('/api/public/v1/my/orders/create',orderInfo)
        if(res.meta.status!==200) return uni.$showMsg('创建订单失败！')
        // 1.3 得到服务器响应的订单编号
        const orderNumber = res.message.order_number
        // console.log(orderNumber)
        // 2.订单预支付
        // 2.1发起请求获取订单的支付信息
        const {data:res2} = await uni.$http.post('/api/public/v1/my/orders/req_unifiedorder',{order_number:orderNumber})
        // 2.2预付订单生成失败
        if(res2.meta.status!==200) return uni.$showMsg('预付订单生成失败！')
        // 2.3得到订单支付相关的必要参数
        const payInfo = res2.message.pay
        // console.log(payInfo)
        
        // 3.发起微信支付
        // 3.1调用uni.requestPayment()发起微信支付
        const [err,succ] = await uni.requestPayment(payInfo)
        // 3.2未完成支付
        if(err) return uni.$showMsg('订单未支付！')
        // 3.3完成支付,进一步查询支付的结果
        const {data:res3} = await uni.$http.post('/api/public/v1/my/orders/chkOrder',{order_number:orderNumber})
        // 3.4检测到订单未支付
        if(res3.meta.status!==200) return uni.$showMsg('订单未支付！')
        // 3.5检测到订单支付完成
        uni.showToast({
          title:'订单支付完成！',
          icon:'success'
        })
      },
      // 展示倒计时的提示消息
      showTips(n){
        uni.showToast({
          icon:'none',
          title:'请登录后再结算！'+n+'秒之后自动跳转到登录页',
          mask:true,
          duration:1500
        })
      },
      // 延时导航到my页面
      delayNavigate(){
        this.seconds = 3
        this.showTips(this.seconds)
        this.timer = setInterval(()=>{
          this.seconds--
          if(this.seconds<=0){
            clearInterval(this.timer)
            uni.switchTab({
              url:'/pages/my/my',
              success:()=>{
                this.updateRedirectInfo({
                  openType:'switchTab',
                  from:'/pages/cart/cart'
                })
              }
            })
            return 
          }
          this.showTips(this.seconds)
        },1000)
      }
    }
  }
</script>
<style lang="scss">
  .my-settle-container{
    position:fixed;
    bottom:0;
    left:0;
    width:100%;
    height:50px;
    background-color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
    padding-left:5px;
    .radio{
      display: flex;
      align-items: center;
    }
    .amount-box{
      .amount{
        color:#c00000;
        font-weight:bold;
      }
    }
    .btn-settle{
      background-color: #c00000;
      height:50px;
      color:white;
      line-height: 50px;
      padding:0 10px;
      min-width: 100px;
      text-align: center;
    }
  }
</style>
